The Back button appears every time you use a jump.  It is an easy way to get back to the previous screen with the last jump made.

 

"Getting Lost in Help"

 

Many times, if using jump after jump, you will "get lost" in all the Help topics.  An easy way to solve this is to click the X in the upper, right hand corner and close the program. Now start your help search again.

 

A BETTER option is to keep clicking the Back button, until you get back to the page that contained the first jump taken.